An Improved Quadratic Interpolation ABC for ADI-FDTD Method

被引：0
|
作者：
Zhao, Jianing [1 ]
Zhou, Jianyi [2 ]
机构：
[1] Southeast Univ, Sch Informat & Engn, Natl Mobile Communicat Res Lab, 2 Si Pai Lou, Nanjing 210096, Peoples R China
[2] Southeast Univ, Sch Informat & Engn, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China
来源：
APMC: 2009 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5 | 2009年
基金：
中国国家自然科学基金;
关键词：
alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method; absorbing boundary condition (ABC); quadratic interpolation; phase velocity; nonuniform; ABSORBING BOUNDARY-CONDITIONS; MAXWELLS EQUATIONS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, based on quadratic interpolation in time domain, an improved first-order absorbing boundary condition (ABC) for the alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method is developed. The ABC is derived in two half-time steps iteration form which is very suitable for the ADI-FDTD method. The reflection of the ABC caused by both the truncated error and the phase velocity error is analyzed in detail. The phase velocity estimation and nonuniform cell are adopted to improve the performance of the ABC. Numerical results show that efficient improvement on the absorbing performance is achieved based on these methods.
引用
收藏
页码：60 / +
页数：2
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